X-Git-Url: https://git.heureux-cyclage.org/?a=blobdiff_plain;f=maintenance%2FinitEditCount.php;h=b7301643adf172a4304b25f63507ed46bdc81496;hb=17484e507dd9b9c6c4d182cea940980dabc7f787;hp=a975f356162d7c6bc7562924f71cc0dbfeddf39e;hpb=288a7eb7f18ebc1f98f6ad65ede01c9ea39d9e9b;p=lhc%2Fweb%2Fwiklou.git

diff --git a/maintenance/initEditCount.php b/maintenance/initEditCount.php
index a975f35616..b7301643ad 100644
--- a/maintenance/initEditCount.php
+++ b/maintenance/initEditCount.php
@@ -1,40 +1,108 @@
 <?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @ingroup Maintenance
+ */
 
-require_once "commandLine.inc";
+require_once( dirname(__FILE__) . '/Maintenance.php' );
 
-// @fixme: add replication-friendly batch mode
+class InitEditCount extends Maintenance {
+	public function __construct() {
+		parent::__construct();
+		$this->addOption( 'quick', 'Force the update to be done in a single query' );
+		$this->addOption( 'background', 'Force replication-friendly mode; may be inefficient but
+		avoids locking tables or lagging slaves with large updates;
+		calculates counts on a slave if possible.
 
-$dbw = wfGetDB( DB_MASTER );
-$user = $dbw->tableName( 'user' );
-$revision = $dbw->tableName( 'revision' );
+Background mode will be automatically used if the server is MySQL 4.0
+(which does not support subqueries) or if multiple servers are listed
+in $wgDBservers, usually indicating a replication environment.' );
+		$this->mDescription = "Batch-recalculate user_editcount fields from the revision table";
+	}
 
-$dbver = $dbw->getServerVersion();
-if( ($dbw instanceof DatabaseMySql && version_compare( $dbver, '4.1' ) < 0)
-	|| isset( $options['force-mysql4'] ) ) {
-	
-	echo "Warning: MySQL $dbver; using hacky MySQL 4.0 compatibility query...\n";
-	$sql = "CREATE TEMPORARY TABLE temp_editcount (
-	  temp_user_id INT,
-	  temp_user_editcount INT
-	)";
-	$dbw->query( $sql );
+	public function execute() {
+		global $wgDBservers;
+		$dbw = wfGetDB( DB_MASTER );
+		$user = $dbw->tableName( 'user' );
+		$revision = $dbw->tableName( 'revision' );
+
+		$dbver = $dbw->getServerVersion();
+
+		// Autodetect mode...
+		$backgroundMode = count( $wgDBservers ) > 1 ||
+			($dbw instanceof DatabaseMySql && version_compare( $dbver, '4.1' ) < 0);
 	
-	$sql = "INSERT INTO temp_editcount
-	  (temp_user_id, temp_user_editcount)
-	  SELECT rev_user, COUNT(rev_user)
-	    FROM $revision GROUP BY rev_user";
-	$dbw->query( $sql );
-
-	$sql = "UPDATE $user
-	  LEFT OUTER JOIN temp_editcount ON user_id=temp_user_id
-	  SET user_editcount=IF(temp_user_editcount IS NULL,0,temp_user_editcount)";
-	$dbw->query( $sql );
-} else {
-	// Subselect should work on modern MySQLs etc
-	$sql = "UPDATE $user SET user_editcount=(SELECT COUNT(*) FROM $revision WHERE rev_user=user_id)";
-	$dbw->query( $sql );
-}
+		if( $this->hasOption('background') ) {
+			$backgroundMode = true;
+		} elseif( $this->hasOption('quick') ) {
+			$backgroundMode = false;
+		}
+
+		if( $backgroundMode ) {
+			$this->output( "Using replication-friendly background mode...\n" );
+
+			$dbr = wfGetDB( DB_SLAVE );
+			$chunkSize = 100;
+			$lastUser = $dbr->selectField( 'user', 'MAX(user_id)', '', __METHOD__ );
 
-echo "Done!\n";
+			$start = microtime( true );
+			$migrated = 0;
+			for( $min = 0; $min <= $lastUser; $min += $chunkSize ) {
+				$max = $min + $chunkSize;
+				$result = $dbr->query(
+					"SELECT
+						user_id,
+						COUNT(rev_user) AS user_editcount
+					FROM $user
+					LEFT OUTER JOIN $revision ON user_id=rev_user
+					WHERE user_id > $min AND user_id <= $max
+					GROUP BY user_id",
+					__METHOD__ );
+
+				foreach( $result as $row ) {
+					$dbw->update( 'user',
+						array( 'user_editcount' => $row->user_editcount ),
+						array( 'user_id' => $row->user_id ),
+						__METHOD__ );
+					++$migrated;
+				}
+				$dbr->freeResult( $result );
+
+				$delta = microtime( true ) - $start;
+				$rate = ($delta == 0.0) ? 0.0 : $migrated / $delta;
+				$this->output( sprintf( "%s %d (%0.1f%%) done in %0.1f secs (%0.3f accounts/sec).\n",
+					wfWikiID(),
+					$migrated,
+					min( $max, $lastUser ) / $lastUser * 100.0,
+					$delta,
+					$rate ) );
+
+				wfWaitForSlaves( 10 );
+			}
+		} else {
+			// Subselect should work on modern MySQLs etc
+			$this->output( "Using single-query mode...\n" );
+			$sql = "UPDATE $user SET user_editcount=(SELECT COUNT(*) FROM $revision WHERE rev_user=user_id)";
+			$dbw->query( $sql );
+		}
+
+		$this->output( "Done!\n" );
+	}
+}
 
-?>
+$maintClass = "InitEditCount";
+require_once( DO_MAINTENANCE );